Improvement in machines for cutting miters



UNITED STATES PATENT OEEIoE.

JOHN LAGAUSE, OF CLEVELAND, OHIO.

IMPROVEMENT IN MACHINES FOR CUTTING MITERS.

Specication forming part of Letters Patent No. 155,646, dated October 6,1874 application filed March 21, 1874.

To all Iwhom it may concern Be it known that I, JOHN L. GAUSE, ofCleveland, in the county of Cuyahoga and State of Ohio, have invented aMachine for Cutting Miters, lof which the following is a specicati'on: j

This invent-ion relates to a machine for sawing miters and miters on abevel, said miters and bevels being indicated and obtained by the use ofdials or4 graduated plates; and consists in certain improvements on mypatent for miter-boXes,No.147,764, dated. the 24th day of February,1874..

The invention consists in the novel construction and arrangement of thesaw-guides, and mechanism for adjusting them eXtensibly and at variousangles to the platform. p

To enable others fully to understand my invention, I proceed to describethe same in detail by the aid of the accompanying drawing, in which-Figure l is a top or plan view of my machine. Fig. 2 is a cross-sectionin lines a' .fr of Fig. l, and y y, Fig. 3. Fig. 3 is a front elevationof the machine. y

A represents the bed or platform of the `machine,and consists of twoboards, A A1,

between which are secured blocks A2, leaving an open space between saidboards at the middle, crosswise through from the front to the rear side.This makes a rm solid bed for the working parts. The frontedges of saidboards A A1, infront of said opening, are curved, as seen in Fig. 1. Tothe upper side of said board A1, in the said opening, is secured a4socket-plate, B, havinga curved front edge, near which edge is a curvedslot, through which the neckof a clamp-ring, E,

passes.` C is a grooved bed for the divided rocking lever to lie in, andis pivoted to the plate B at d, and has bearings at each end for therocking lever to turn in. D1 is the lower half, and Dz the upper half,of the aforesaid divided lever, it being in two parts,

for the purposeof enabling it to be extended or elongated. The halvesare provided with a tongue and groove to prevent them slipping apartsidewise. The clamp-ring E em- 1 braces these two halves, and, whenscrewed down, holds them lirmly together. To the rear end of the lowerhalf is made an ear, to which are secured two upright pins, F, whichform the rear guides for a saw; also, to the front end of the upper halfis made a similar ear, to which are secured two other upright pins, G,forming the front saw-guides. To the front end ofthe lower half of saidlever is made a half-disk, having a curved slot, h, in it, and to thefront end of the bed C is made a disk, I, having a screw passing throughthe slot h, with a thumb-nut for securing the rocking lever in position.Upon the upper periphery of disk I is a graduated scale, i, by which apointer, i', attached to a bail on the halfdisk, enables the degree ofbevel to be obtained in tilting the sawguides. On the curved edge of theboard A is fixed a dial for setting the bed C and lever at the desiredangle for al miter. On the pins F F G G are placed metal rollers J J JJ, made in pairs, the upper ends having tongued and grooved wheels,which run together, and thereby keep the two always on the same level.On the lower ends of said rollers are placed flexible bands, and midwaybetween these and the top are two other flexible bands. Between thepairs of rollers a saw plays, and they are adapted for either a handorback saw. Below each pair of rollers, on the pins, is placed a spiralspring, for the purpose of holding them up; but they readily yield andadapt themselves to the movements of the saw. The backs K K are slotted,and are held on by thumb-screws, and are adjustable. The end guides L Lare also slotted, and are adjustable.

With these improvements the saw-guides may be extended, so as to readilyadapt themselves to varying widths of moldings to be cut. The rollers JJ also allow the saw to be guided in its first cutting, as well as whenit has cut half-way` or more into the piece it is cutting.

" Having described my invention, I claim- 1. The divided eXtensiblerocking lever D1 D2,'in combination with the traveling bed C,constructed as described, and adjustable springs, and divided extensiblerocking lever therein by means of a ring, E, secured in a; D1 D2,Whereby'said. rollers may be adjusted slot in plate B, substantially asspeeied. L, ait various distances, and at any angle, sub- 2. The rollersJ, constructed as described, stantielly as specified.

in combination with the guide-pins F G and JOHN L. GAUSE.

springs, as and for the purpose set forth. Witnesses 3. The rollers J,constructed es described, GEO. W. TIBBITTS,

in combination with the guide-pins F G, GEO. A.. KOLBE.

